It's an interesting idea, SRS but I don't own any jigsaw puzzles. Dad is the only one who does (and, Sandra, with the space to do one). I think he's got around 30-40, all of which get assembled once in a while.

I've been out of doing online jigsaws for a while but may return to it and mum does them daily. The site we have preferred is TheJigsawPuzzles.com. Mum particularly enjoys their mystery ones where you don't get a preview picture but find out what the picture is as you put the pieces together.